Method of fabricating Bragg gratings using a silica glass phase grating mask and mask used by same
US5367588A · kind A · utility
192Cited by
13References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 29, 1992 |
| Grant date | Nov 22, 1994 |
| Priority date | — |
| Expiry date | Oct 29, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S359/90
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An index grating is imprinted in the core of an optical fiber using a specially designed silica glass phase grating mask. The phase mask is held in close proximity to the optical fiber. Laser irradiation of the phase mask with ultraviolet light at normal incidence imprints (photoinduces) into the optical fiber core the interference pattern created by the phase mask.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.